Mounting Type
Mounting Type refers to the method by which an electronic component is attached to a printed circuit board (PCB) or other surface. Common mounting types include:
* Through-hole: Component leads are inserted into holes in the PCB and soldered on the other side.
* Surface-mount: Component is placed on the surface of the PCB and soldered in place.
* Press-fit: Component is pressed into place on the PCB without soldering.
* Socket: Component is inserted into a socket on the PCB, allowing for easy replacement.
The mounting type is determined by factors such as the component's size, shape, and power requirements.
Surface Mount
Package / Case
Package / Case refers to the physical housing or enclosure that encapsulates an electronic component. It provides protection, facilitates handling, and enables electrical connections. The package type determines the component's size, shape, pin configuration, and mounting options. Common package types include DIP (dual in-line package), SOIC (small outline integrated circuit), and BGA (ball grid array). The package also influences the component's thermal and electrical performance.
8-SOIC (0.173, 4.40mm Width)
Number of Pins
Number of Pins: Indicates the number of electrical connections available on the component. These pins are used to connect the component to other components or circuits on a printed circuit board (PCB). The number of pins determines the functionality and connectivity options of the component. It is important to ensure that the component has the correct number of pins for the intended application.
8
Supplier Device Package
8-SOP
Operating Temperature
Operating Temperature is the range of temperatures at which an electronic component can function properly. It is typically specified in degrees Celsius (°C) and indicates the minimum and maximum temperatures at which the component can operate without experiencing damage or degradation. Operating Temperature is an important parameter to consider when designing electronic circuits, as it ensures that the components will function reliably in the intended operating environment.
-40°C~85°C TA
Packaging
Tape & Reel (TR)
Part Status
Part Status is an electronic component parameter that indicates the availability and production status of a component. It is typically used to inform customers about the availability of a component, whether it is in production, end-of-life, or obsolete. Part Status can also provide information about any restrictions or limitations on the component's use, such as whether it is only available for certain applications or if it has been discontinued.
Obsolete
Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a measure of the susceptibility of a surface mount electronic component to moisture-induced damage during soldering. It is classified into six levels, from 1 (least sensitive) to 6 (most sensitive). MSL is determined by the materials used in the component's construction, including the solderability of its terminals and the presence of moisture-absorbing materials. Components with higher MSL ratings require more stringent handling and storage conditions to prevent moisture absorption and subsequent damage during soldering.
1 (Unlimited)
Max Operating Temperature
85°C
Min Operating Temperature
-40°C
Base Part Number
TC120303
Function
Function refers to the primary purpose or role of an electronic component within a circuit. It describes the specific task or operation that the component is designed to perform. For example, a resistor's function is to limit current flow, a capacitor's function is to store electrical energy, and a transistor's function is to amplify or switch signals. Understanding the function of a component is crucial for selecting the appropriate component for a particular application and ensuring its proper operation within the circuit.
Step-Down
Number of Outputs
Number of Outputs refers to the number of independent output signals or channels that an electronic component can provide. It indicates the capability of the component to drive multiple external devices or circuits simultaneously. A higher number of outputs allows for greater flexibility and connectivity in electronic systems.
1
Voltage - Input (Max)
10V
Output Voltage
Output Voltage is the voltage level produced by an electronic component when it is operating. It is typically measured in volts (V) and can be either positive or negative. The output voltage of a component is determined by its design and the input voltage applied to it. For example, a voltage regulator will produce a fixed output voltage regardless of the input voltage, while an amplifier will produce an output voltage that is proportional to the input voltage.
3V
Output Type
Output type refers to the type of signal or power that an electronic component can produce. It can be analog or digital, AC or DC, and can vary in voltage, current, or power levels. The output type is determined by the component's design and is crucial for matching it with other components in a circuit. Understanding the output type ensures proper signal processing, power delivery, and overall system functionality.
Fixed
Voltage - Input (Min)
1.8V
Output Configuration
Output Configuration refers to the arrangement of output terminals or pins on an electronic component. It specifies the number, type, and arrangement of these terminals, allowing for various connection options. This parameter is crucial for determining the component's compatibility with other devices and ensuring proper signal flow within a circuit.
Positive
Voltage - Output (Min/Fixed)
3V
Frequency - Switching
300kHz
RoHS Status
ROHS3 Compliant
Description
The TC120 is a 300kHz PFM/PWM step-down (Buck) DC/DC regulator/controller combination designed for systems operating from multiple cells or line-powered applications. It utilizes PWM as the primary modulation scheme, automatically switching to PFM at low output loads for enhanced efficiency. With an internal switching transistor, it supports output currents up to 600mA (VIN 5V, Vout 3.3V). An external switching transistor (P-channel MOSFET) can be added to increase output current capability to 2A or more.
The TC120 consumes minimal supply current (55µA max at Vout 3.3V) and can be placed in shutdown mode by activating the SHDN input. During shutdown, the regulator is disabled, supply current is reduced to 2.5μA max, and Vout is internally pulled to ground, discharging the output capacitor. Normal operation resumes when SHDN is deactivated.
Additional features include a built-in undervoltage lockout (UVLO), an externally programmable soft start time, and output short circuit protection. The TC120 operates from a maximum input voltage of 10V and is available in a low-profile 8-Pin SOP package.
Features
Internal switching transistor supports 600mA output current
External switching transistor control for output currents of 2A
300kHz oscillator frequency supports small inductor size
Short circuit protection
Built-in undervoltage lockout
95% typical efficiency
Automatic switchover to current-saving PFM mode at low output loads
Automatic output capacitor discharge while in shutdown
Programmable soft-start
Power-saving shutdown mode
Small 8-Pin SOP package
Applications
Portable test equipment
Local logic supplies
Portable audio systems
Portable scanners
Palmtops
Electronic organizers